Whether you're looking for new units to outfit an addition or replacements for your existing windows, the experts at This Old House sort through the options to simplify your search
What Do They Cost? An off-the-shelf, 36-by-54-inch pine double-hung with insulated glass runs about $270. The same window made to order with high-performance glazing will be about $825. In mahogany the cost jumps to $2,100.
How Long Do They Last? A wood sash and frame will last indefinitely, if properly maintained. Glazing is typically warranted against fogging for 20 years.
Can You Install Them Yourself? Leave it to a pro to put a new full-frame window into a rough opening. Replacing just the sashes is a DIY-friendly job. Shown above: Pella Precision-Fit; pella.com
How Much Can They Save You? Energy Star–rated windows can shave 7 to 24 percent off your heating and cooling costs, depending on the type of window you're replacing and the part of the country you're in.
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